BRUEL & KJAER 2006 - Page 11

dB
+5
+4
t3
+2
+1
-1
-2
-3
-4
-5
-1
- 2
-3
- 4
-5
-6
dB
11
11
a
Frequen cy (MHz)
1 1.3 11.5
b
"'Wi de"
Fr~quency Rang~
Out of position
465'-37
Fig. 1.7. Sensitivity of the Heterodyne Voltmeter Type 2006 (typical curves)
around the IF-Frequency
a. BANDWIDTH switch in position "Wide" and "Narrow" respectively.
FREQUENCY RANGE switch in position 2.
b. BANDWIDTH switch in position "Wide·'.
FREQUENCY RANGE switch out of position.
R f!ar Connection Plug
Externally
viewed
+0 v
-6V
LF
"Ground"
Carrier
Detector
Output
465438
Fig. 1.8. Rear Connection Plug.
Pin 1: Battery voltage negative pole. A 6 volts ex ternal battery can be con-
nected here.
Pin 2: Output for external loudspeaker.
Pin 3: An external meter can be connected here.
Pin 4: "Ground" for loudspeaker and meter circuit.
Pin 5: Battery. Positive pole. Connected to chassis.
9